mesos/spark — pull request #944 by GraceH (2013-09-27 05:51:32+00:00)
Title: SPARK-900 Use coarser grained naming for metrics

SPARK-900 Use coarser grained naming for metrics.
Now the new metric name is formatted as {XXX.YYY.ZZZ.COUNTER_UNIT}, XXX.YYY.ZZZ represents the group name, which can group several metrics under the same Ganglia view.